According to the shape of the scissors Shearing machine according to the shape of the scissors is divided into straight knife cutting machine and cutting disc plate shears. Straight knife cutting machine according to the structure is divided into longmen plate shears and laryngeal orifice plate shears. Disc knife cutting machine according to the structure is divided into the disc shearing machine, slitting machine, disc shearing machine and rotary trimming shear.

According to the motion trajectory of tool post classification shearing machine according to the tool post trajectory is divided into the following kinds:

(1) rest along the vertical movement, since there is no front rake, so on blade section must be processed into a diamond, so only two blade (four edges of the rectangular blade can also be used, but the poor quality of shear), the tool post shear fracture and the pan out of square.

(2) tool slide along the forward line (with the vertical Angle of 1 ° 30 '~ 2 °) movement, the blade section can be processed into rectangle has four blade, shear fracture basically at right angles to the surface.

(3) the rest line along the arc swing, the shear blade section should be processed into a diamond, so only two blade, because on the blade in the process of shearing slightly forward, so the shearing quality and tool rest along the forward line movement.

(4) oscillating head along the arc line, former Angle of up to 300, so you can cut out the welding groove

3. According to the transmission way of classification Shearing machine according to the way of the transmission can be divided into: mechanical shearing machine and hydraulic shear the trigger